David Suhami's Animal Pocket Knife is a fun toy that can unfold into three different animals:

The safari “knife” is completely harmless, yet still beautiful enough to be appealing to discerning adult minds. The object features interchangeable heads, legs and tails for three animals: a rhino, an antelope and a giraffe.

If, like me, you have a warped imagination, you could also create a beast with the head and tail of a rhinoceros, the forelegs of an antelope and the hind legs of a giraffe.